CVE-2019-9852

NameCVE-2019-9852
DescriptionLibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1947-1, DSA-4501-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libreoffice (PTS)jessie, jessie (lts)1:4.3.3-2+deb8u15fixed
stretch (security)1:5.2.7-1+deb9u11fixed
stretch (lts), stretch1:6.1.5-3+deb9u5fixed
buster, buster (lts)1:6.1.5-3+deb10u14fixed
buster (security)1:6.1.5-3+deb10u12fixed
bullseye1:7.0.4-4+deb11u10fixed
bullseye (security)1:7.0.4-4+deb11u11fixed
bookworm (security), bookworm4:7.4.7-1+deb12u5fixed
sid, trixie4:24.8.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libreofficesourcewheezy(unfixed)end-of-life
libreofficesourcejessie1:4.3.3-2+deb8u13DLA-1947-1
libreofficesourcestretch1:5.2.7-1+deb9u10DSA-4501-1
libreofficesourcebuster1:6.1.5-3+deb10u3DSA-4501-1
libreofficesource(unstable)1:6.3.0-1

Notes

https://www.libreoffice.org/about-us/security/advisories/cve-2019-9852/

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